The Royal Australian Mint has released a series of 2003 commemorative coins to celebrate the work of Australia's volunteers. They can be viewed at https://www.ramint.gov.au/publications/australias-volunteers-honoured-our-coins. As the Mint says: "Brimming with the spirit of mateship and goodwill, this wonderful memento is a fitting tribute to the many unsung Australians who do credit to us all."
Colleen